Tell me again. Who made the desert bloom?

A very interesting post on Lawrence of Cyberia blog in regards to that myth/cliche that the Israelis "made the desert bloom" and she asks the question: Who really made the desert bloom?..Also posted is an extensive survey the British Mandate authorities carried out in support of the work of the United Nations Special Committee on Palestine. The results were published in the Survey of Palestine, which has been scanned and made available online by Palestine Remembered: The documents are staggering, something the hasbara PRs and markteers wouldn't like you to discover..

***"The British government survey found that in 1944-45 Palestine’s farmers produced approximately 210,000 tons of grain.
About 193,400 tons of that grain were cultivated on Palestinian farms; about 16,600 tons were cultivated on Jewish farms.

***The survey found that in 1944-45 Palestine’s farmers produced approximately 143,000 tons of melons.
About 136,000 tons of those melons were cultivated on Palestinian farms; a little over 7,000 tons were cultivated on Jewish farms.

***The survey found that in 1944-45 Palestine’s farmers produced approximately 1,683 tons of tobacco, on 28,169 dunams of land. Virtually all the land under tobacco cultivation was Palestinian.

***The survey found that in 1944-45 Palestine’s farmers produced approximately 40-50,000 tons of grapes, and between 3-4 million litres of wine. About 86% of the land that produced these products was owned and cultivated by Palestinians.

***The survey found that in 1944-45 Palestine’s farmers produced approximately 79,000 tons of olives.
About 78,000 tons of those olives were cultivated on Palestinian farms; a little over 1,000 tons were cultivated on Jewish farms.

***The survey found that in 1944-45 Palestine’s farmers produced approximately 8,000 tons of bananas.
About 60% of the land that produced these bananas was owned and cultivated by Palestinians.

***The survey found that in 1944-45 Palestine’s farmers produced approximately 245,000 tons of vegetables.
About 189,000 tons of those vegetables were cultivated by Palestinian farmers; about 56,000 tons were cultivated by Jewish farmers.

***The survey found that in 1944-45 Palestine’s farmers produced approximately 245,000 tons of vegetables.
About 189,000 tons of those vegetables were cultivated by Palestinian farmers; about 56,000 tons were cultivated by Jewish farmers.
So, on the eve of the partition resolution, in which the United Nations proposed to allocate 55 percent of the land to Jewish Palestine (including those parts that produced most of Palestine's leading crops, with the sole exception of the olive crop), and 45% to Arab Palestine, Palestinian Arabs were producing:

92% of Palestine’s grain
86% of its grapes
99% of its olives
77 % of its vegetables
95% of its melons
more than 99% of its tobacco
and 60% of its bananas.

Palestine's agricultural produce at that time had an annual value of approximately 21.8 million pounds sterling; 17.1 million of which was produced by Arab cultivation, and 4.7 million by Jewish cultivation.

So, who made the desert bloom?