If a farmer wishes to succeed, he must try to keep a wide gap between his consumption and his production. He must store a large quantity of grain ________ consuming all his grain immediately. He can continue to support himself and his family ________ he produces a surplus. He must use this surplus in three ways: as seed for sowing, as an insurance ________ the unpredictable effects of bad weather and as a commodity which he must sell in order to ________ old agricultural implements and obtain chemical fertilizers to ______ the soil. He may also need money to construct irrigation ______ and improve his farm in other ways. If no surplus is available, a farmer cannot be ______ . He must either sell some of his property or ________ extra funds in the form of loans. Naturally he will try to borrow money at a low ________ of interest, but loans of this kind are not ________ obtainable.